Steve
There is a second patent in your grandfathers name.. It is GB436210(A) with priority date 8.3.1934. The title is "Improvements in or relating to Variable Speed Gear". The applicants were John Richardson Hannam, Henry Gregory and one other.
Sorry I missed it before. It is 15 years since I last worked with patents databases so I am a little rusty. It brings back nice memories so thank you.
Dave
Thanks Dave
John b1893 was the son of Charles Richard b1864. It may have been that they were registered in his sons name, as for overseas patents I am sorry I do not know.
Steve, see also:
GB191218704(A) published 5.6.1913
Priority 15.8.1912
Improvements in Variable Speed Gearing
Applicant Charles Richard Hannam.
So the family memory was right in this case. There were " several" patents between them.
Dave
Not what you are looking for, but I thought it was quite amusing.
Sheffield Daily Telegraph, 17 September 1904.
John Booth charged with stealing a bicycle.
Prisoner hired a cycle from Mr. S. F. Hannam at 154 Main Road, Darnall.
Instead of returning the machine, he took it to the establishment of
Mr. Charles Hannam, 131 Bramall Lane, and offered it for sale. This
gentleman is the brother to the prosecutor and being unaware that it was
stolen, purchased the machine for 12s 6d.